Subglacial bedrock welding associated with glacial earthquakes

Autor(en)

M Bestmann, Alexander Hugh Neville Rice, F Langenhorst, Bernhard Grasemann, F Heidelbach

Abstrakt

A 1130 °C) to cause partial frictional welding of the deformed quartzitic bedrock beneath an ice-loaded clast. These results support suggestions that glacial seismicity is due to episodic very rapid shifts of large ice masses over the substrate (stick-slip movement). They also indicate that significant effective normal stresses occur at the base of glaciers.

Organisation(en)

Institut für Geologie

Externe Organisation(en)

Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universität Bayreuth

Journal

Journal of the Geological Society

Band

163

Seiten

417-420

Anzahl der Seiten

4

ISSN

0016-7649

Publikationsdatum

2006

Peer-reviewed

Ja

ÖFOS 2012

1051 Geologie, Mineralogie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/9c5d7618-29d2-4b93-98f2-fa4c1fd590a7